GB1424447A - Sodium vapour lamp having starting means - Google Patents

Sodium vapour lamp having starting means

Info

Publication number
GB1424447A
GB1424447A GB2800873A GB2800873A GB1424447A GB 1424447 A GB1424447 A GB 1424447A GB 2800873 A GB2800873 A GB 2800873A GB 2800873 A GB2800873 A GB 2800873A GB 1424447 A GB1424447 A GB 1424447A
Authority
GB
United Kingdom
Prior art keywords
heater
arc tube
starting means
june
wire
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2800873A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GTE Sylvania Inc
Original Assignee
GTE Sylvania Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GTE Sylvania Inc filed Critical GTE Sylvania Inc
Publication of GB1424447A publication Critical patent/GB1424447A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
    • H01J61/541—Igniting arrangements, e.g. promoting ionisation for starting using a bimetal switch
    • H01J61/544—Igniting arrangements, e.g. promoting ionisation for starting using a bimetal switch and an auxiliary electrode outside the vessel

Abstract

1424447 Gas discharge lamps GTE SYLVANIA Inc 12 June 1973 [28 June 1972] 28008/73 Heading H1D A high pressure sodium vapour discharge lamp comprises a glass envelope 1, an alumina arc tube 8 having electrodes 13, 14 and filled with sodium, mercury and argon or xenon, a heater comprising a coiled coil tungsten wire 20 wound on an alumina rod 21 and a wire loop 28 surrounding the arc tube 8 near electrode 14 and connected to the remote end of the heater wire. A thermal switch 22 disconnects the heater after a certain temperature has been attained. Further loops 28 may be provided at the centre and other end of the arc tube. The heater and the loops 28 together act as starting means for the lamp.
GB2800873A 1972-06-28 1973-06-12 Sodium vapour lamp having starting means Expired GB1424447A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26709772A 1972-06-28 1972-06-28

Publications (1)

Publication Number Publication Date
GB1424447A true GB1424447A (en) 1976-02-11

Family

ID=23017300

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2800873A Expired GB1424447A (en) 1972-06-28 1973-06-12 Sodium vapour lamp having starting means

Country Status (4)

Country Link
US (1) US3721845A (en)
JP (1) JPS4964276A (en)
CA (1) CA983987A (en)
GB (1) GB1424447A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2186957A (en) * 1986-02-25 1987-08-26 Nissan Motor Combination lamp

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3900753A (en) * 1974-05-23 1975-08-19 Gte Sylvania Inc High pressure sodium vapor lamp having low starting voltage
US3872340A (en) * 1974-05-28 1975-03-18 Gen Electric High temperature lamp starting aid
NL168993C (en) * 1975-01-17 1982-05-17 Philips Nv METHOD FOR OPERATING A SELF-STABILIZING DISCHARGE LAMP
US4037129A (en) * 1976-03-10 1977-07-19 Gte Sylvania Incorporated High pressure sodium vapor lamp having low starting voltage
US4179640A (en) * 1977-12-05 1979-12-18 Westinghouse Electric Corp. Hid sodium lamp which incorporates a high pressure of xenon and a trigger starting electrode
US4316122A (en) * 1979-10-03 1982-02-16 Matsushita Electronics Corporation High pressure sodium vapor discharge lamp

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2765416A (en) * 1953-09-24 1956-10-02 Westinghouse Electric Corp Vapor lamps utilizing chemical compounds

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2186957A (en) * 1986-02-25 1987-08-26 Nissan Motor Combination lamp
GB2186957B (en) * 1986-02-25 1990-02-21 Nissan Motor Combination lamp

Also Published As

Publication number Publication date
US3721845A (en) 1973-03-20
CA983987A (en) 1976-02-17
JPS4964276A (en) 1974-06-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee